Vendor Z-2944
Seven delicately colored flowers and 19 buds on four upright inflorescences to 47-cm, borne on a 28.0-cm by 24.0-cm plant with conical pseudobulbs 7.6 cm in diameter and 3.2 cm in height, each with two linear leaves, 16 cm in length and 1.5 cm in width, grown in a 13.5-cm by 10.5-cm plastic pot in sphagnum moss; sepals lanceolate, acute, apically recurved, chartreuse, overlaid light brown on distal three-fourths, picotee chartreuse, irregularly and sparsely spotted chartreuse; petals spatulate-undulate, acute, apically recurved, chartreuse, overlaid light brown on distal three-fourths, picotee chartreuse; lip trilobed, white, beautifully veined magenta; sidelobes ovate, obtuse, tightly appressed to column, light brown; midlobe ovate, slightly bifurcate; column chartreuse, anther cap white; substance firm; texture matte.

Reference:
millersville.edu - orchid anatomy
AOS.org - orchid parts and why they matter
orchidsofnewguinea.com - Botantical Orchid Glossary
key-lucidcentral.org - Orchid Glossary